# NTSB ANC86LA139: Bellanca 8KCAB, N1177E, Susitna River, AK, August 29, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 29, 1986, 12:15 local (20:15 UTC)
- Place: Susitna River, AK
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 4725
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC86LA139
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4725/pdf
- Page: https://openairdocs.org/ntsb/ANC86LA139

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of engine power(total) - nonmechanical, maneuvering
  - fluid,fuel - exhaustion (cause)
  - procedures/directives - not followed, pilot in command (cause)
  - judgment - poor, pilot in command (cause)
  - flight manuals - not understood, pilot in command (cause)
- Forced landing, descent - emergency
- Nose over, landing - roll

## Analysis

THE PILOT WAS DEMONSTRATING INVERTED FLIGHT TO THE STUDENT PILOT AND AFTER ONE MINUTE OF FLIGHT IN THAT ATTITUDE THE ENGINE BEGAN TO RUN ROUGH AND THEN FINALLY FAILED. THE PILOT PERFORMED A FORCED LANDING AND DURING THE LANDING ROLL THE AIRPLANE NOSED OVER.

## Aircraft

- Registration: [N1177E](https://openairdocs.org/deregistered/N1177E-2023-03-04), registration cancelled 2023-03-04, S/N 315-77, built 1977 (OpenAirDocs)
- Reported make and model: BELLANCA 8KCAB
- Registry model: [Bellanca 8KCAB](https://openairdocs.org/model/bellanca-8kcab) (registry code 1220801) (OpenAirDocs)
- Registry engine: [Lycoming AEIO-360 series](https://openairdocs.org/engine/lycoming-aeio-360-series) (registry code 41522, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 31577
- Airframe hours: 680
- Engines: LYCOMING IO-360 180 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Jacob F. Nielsen
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, August 28, 1986, 6 hours before

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 56; commercial, flight instructor, airline transport; airplane ratings: multi-engine land, single-engine land, multi-engine sea, single-engine sea; instrument ratings: airplane; medical: class 1, unknown; seat: rear; flight hours: 26,000 total, 510 in this make and model, 250 in the last 90 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 40 statute miles
- Lowest ceiling: none
- Temperature: 70 °F, dew point 41 °F
- Altimeter: 29.00 inHg

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19860829043229A](https://openairdocs.org/incident/19860829043229A), Aug 29, 1986: Bbavia 8KCAB, Susitna River, AK, Substantial damage. Engine ran rough after continued inverted flight and finally quit. Nosed over on forced landing. No fuel in lines.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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